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What is the Difference Between Granite and Marble in Terms of Hardness & Density

Even though both marble and granite last longer, they are not quite similar in terms of strength and density. Choosing a material between these two can be confusing but knowing some basic facts would help you make the right decision.

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What is the Difference Between Granite and Marble in Terms of Hardness & Density

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  1. What is the difference between granite and marble in terms of hardness and density? Even though both marble and granite last longer, they are not quite similar in terms of strength and density. Choosing a material between these two can be confusing but knowing some basic facts would help you make the right decision. Marble or Granite, which is Harder? Granite’s impeccable hardness is a result of its natural elements primarily quartz and feldspar. This makes the stone rank high on the Mohs scale (a scale used for classifying the hardness of minerals, typically ranging from 1 to 10). The mineral hardness found in granite is 6-7 as per the Mohs scale. This hardness rate is enough to make granite highly resistant to scratches, abrasion, and other common damages. Marble, on the other hand, is not as hard as granite. The mineral hardness measured in marble is 3-5, making the stone relatively softer compared to granite. This means marble is more susceptible to scratching, etching, or other wear and tear over time. As a result, maintaining marble surfaces may require meticulous care and protection compared to granite.

  2. Which stone is more dense? Granite is denser, and that’s one big reason why it is considered heavier than marble. The density of granite is typically measured between a range of 2.6 to 2.7 grams per cubic centimeter (g/cm³). The more the stone is high in density, the more the stone is resistant to scratching, staining, and chipping. Marble usually has a density ranging from 2.5 to 2.7 grams per cubic centimeter (g/cm³), depending on the specific type and mineral composition. Why marble feels lightweight because of this density variation, making it clear that your marble surfaces can easily get scratched compared to granite. Disparities in a stone’s strength and density can influence its applicability for specific installations in construction, architecture, and design. For example, if you’re too concerned about scratching your surfaces, marble surely won't be a good choice. That’s why installing granite in high-traffic areas like a kitchen countertop is more popular in modern interior décor. You don't want any scratches to ruin the beauty and finish of your surfaces in just a few months.

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